Improve debug logging in DataUpdateCoordinator (#290)

custom_components/tahoma/coordinator.py

@@ -53,6 +53,10 @@ def __init__(
         self.devices: Dict[str, Device] = {d.deviceurl: d for d in devices}
         self.executions: Dict[str, Dict[str, str]] = {}
 
+        _LOGGER.debug(
+            "Initialized DataUpdateCoordinator with %s interval.", str(update_interval)
+        )
+
     async def _async_update_data(self) -> Dict[str, Device]:
         """Fetch TaHoma data via event listener."""
         try:
@@ -61,7 +65,8 @@ async def _async_update_data(self) -> Dict[str, Device]:
             raise UpdateFailed("invalid_auth") from exception
         except TooManyRequestsException as exception:
             raise UpdateFailed("too_many_requests") from exception
-        except (ServerDisconnectedError, NotAuthenticatedException):
+        except (ServerDisconnectedError, NotAuthenticatedException) as exception:
+            _LOGGER.debug(exception)
             self.executions = {}
             await self.client.login()
             self.devices = await self._get_devices()
@@ -127,6 +132,7 @@ async def _async_update_data(self) -> Dict[str, Device]:
 
     async def _get_devices(self) -> Dict[str, Device]:
         """Fetch devices."""
+        _LOGGER.debug("Fetching all devices and state via /setup/devices")
         return {d.deviceurl: d for d in await self.client.get_devices(refresh=True)}
 
     @staticmethod